,4. BtTFO. 



309 



second; toes half -vrebbed ; two metatarsal tubercles; no, tarsal 

 fold. The hind limb being carried forwards along the body, the 

 tarso-metatarsal articulation reaches the tympanum or the eye. 

 Upper surfaces with irregular warts; parotoids moderate, elliptic 

 or kidney-shaped. Brownish olive above, with dark-brown spots, 

 two of which form a chevron between the eyes ; generally a light 

 vertebral line ; lower surfaces immaculate or dark-spotted. Male 

 with a subgular vocal sae. 



Vae. a. americanus. 



Bufo' americanus, (Zeeonte) Solbr. N.-Amer. Serp. v. pi. 4 ; Bum. 

 (f- Bih: p. 695 ; Hallow. Proc. Ac. Philad. 1856, p. 251 ; Girard, 

 U.S. Mex. Bound. Surv. ii. p. 25 ; Wied, Nova Acta, xxzii. p. 121. 



quercicus, Holbr. N.-Amer. Serp. v. pi. 3. 



dorsalis, Hattow. Proc. Ac. Philad. 1862, p. 181, and in Sit- 



greaves, Exped. Zuni 8( Color. Riv. p. 142, pi. 19. 



woodhousii, Oirard, P-oc. Ac. Philad. 1854, p. 86. 



Chilophryne americana, Cope, P-oc, Ac. Philad. 1863, p. 357. 



Upper view of head. 



Lower surface of foot. 



Supraorbital ridges low ; subarticular tubercles under the toes 

 generally double; inner metatarsal tubercle large, compressed, 

 spade-shaped ; outer tubercle small. 



Sir J. Richardson [P.]. 

 ' Sir J. Richardson [P.]. 



Dr. J. Green [P.]. 

 Lord AmpthiU [P.]. 



Great Bear Lake. 



Lake Winnipeg. 



New York. 



N. America. 



N. America. 



N. America. 



America. 



Mexico. 

 (This specimen is intermediate between vara. A and B.) 

 a. Many spec, yg. Brazil (?P). Dr. Gardiner [P.]- 



,-. $. Puerto CaheUo (?). 



a. Yg. 



b-d. Yg. 



e. 2- 



/, y. 2 & alhmos, yg. 



h-i, k. ? & yg. 



l-m, «. cJ 5 . 



o. ?. 



Vae. B. musicus. 



Bufo musicus, Latr. JRept. ii. p. 127 ; Baud. Rain. p. 9, pi. 33. f. 3, 

 andRept. viii. p. 190 ; Men: Tent. p. 185 ; Ch-avenh. Belie, p. 59 ; 



